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Proceedings Paper

Maximum fixing efficiency of thermal fixing by optimal switching in LiNbO3:Fe crystal
Author(s): Peipei Hou; Ya'nan Zhi; Jianfeng Sun; Yu Zhou; Yongjian Zhu; Liren Liu
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Paper Abstract

Maximum fixing efficiency of thermal fixing in LiNbO3:Fe crystal is investigated. Based on Kukhtarev's band transport model and Kogenlik's theory, the mechanisms leading a high diffraction fixed hologram in LiNbO3:Fe crystal is analyzed. To obtain a volume grating with the maximum fixed diffraction efficiency, the optimal switching from recording step to thermal fixing is taken into consideration. With the same oxidation state and dopant concentration, the developed efficiency for low light intensity depended on the recording wavelength. Holographic gratings are recorded using three typical recording wavelengths including 488nm, 514nm, and 633nm respectively. The fixed holograms are developed by original recording setup. Diffraction efficiencies of recording and thermal fixing are measured by two-wave coupling technique. Both experimental results and theoretical simulation are presented. Through the theoretical and experimental results analyzed and compared, the blue beam was the optimal recording wavelength for maximum fixing efficiency of thermal fixing in LiNbO3:Fe. This work can obtain high persistent diffraction of the nonvolatile holographic storage in LiNbO3:Fe crystals.

Paper Details

Date Published: 8 September 2011
PDF: 9 pages
Proc. SPIE 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V, 812010 (8 September 2011); doi: 10.1117/12.892650
Show Author Affiliations
Peipei Hou, Shanghai Institute of Optics and Fine Mechanics (China)
Ya'nan Zhi, Shanghai Institute of Optics and Fine Mechanics (China)
Jianfeng Sun, Shanghai Institute of Optics and Fine Mechanics (China)
Yu Zhou, Shanghai Institute of Optics and Fine Mechanics (China)
Yongjian Zhu, Zhejiang University of Science & Technology (China)
Liren Liu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8120:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V
Shizhuo Yin; Ruyan Guo, Editor(s)

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